Brush-making machine



D. L. CHANDLER.

BRUSH MAKING MACHINE.

APPLICATION FILED v:c.n.19|a.

1 ,3 1 1 ,796. Patented July 29, 1919.

7SHEETSSHLET I.

D. L. CHANDLER.

BRUSH MAKING MACHINE.

APPLICATION FILED DEC. 11. 1916.

1,3 1 1 ,796. Patented July 29, 1919.

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D. L. CHANDLER. BRUSH MAKING MACHINE.

APPLICATION FILED DEC. 11. 1916.

1,3 1 1 ,7 96. lutentod July 29, 1919.

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xdwjfgy D. L. CHANDLER.

BRUSH MAKING MACHINE.

APPLICATION FILED DEC. n. 1916.

Patented July 29, 1919.

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FIGJH D. L. CHANDLER.

BRUSH MAKING MACHINE.

APPucATlon. FILED DEC. 1|. 1916.

1,3 1 1 ,796. Patented July 29, 1919.

D. L. CHANDLER.

BRUSH MAKING MACHINE.

APPLICATION FILED Dec. 1!, l9lfi.

Patented July 29, 1919.

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D. L. CHANDLER.

BRUSH MAKING MACHINE.

- APPLICATION FILED DEC. II. 1916. 1,3 1 1 ,796. Patented July 29, 1919.

7 SHEETS-SHEET 7.

757 g I V V his all" UNITED STATES FATENT onr cn- DANIEL L. CHAKDLER, 0F FITCHBURG, MASSACHUSETTS, ASSIGNOR TO THE CELLSET BRUSHOOMPANY, A CORPORATION OF MASSACHUSETTS.

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Specification of Letters Patent.

Patented J My 29, 1919.

Application filed December 11, 1916. Serial No. 136,136.

7 '0 all whom it may concern:

Be it known that I, DANIEL L. CHANDLER, a citizen of the United States, residing at Fitchbur in the county of Worcester and State of assachusetts, have invented new and useful Improvements in Brush-Making- Machines, of which the following is a specification.

This invention relates to improvements in brush making machines and has for its object to provide a machine which is adapted to automatically remove a bunch of bristles from a mass, to feed said bunch of bristles to a suitable holder, double and insert said bunch of bristles in a brush back and insert a plug with said bristles to secure the same in place in said back.

Another object of the invention is to provide means for supporting and handling the brush back during the insertion of the bristles therein.

Still another object of the invention is to provide means for deflecting previousl inserted bunches of bristles in the brush back which would interfere with the movements of the bristle inserting instrumentalities.

The object of the invention is also to provide means for feeding plugs to the inserting instrumentalities.

The invention consists in the combination and arrangement of parts, whereby the above objects and certain other objects hereinafter appearing may-be obtained, as set forth in the following specification and particularly pointed out in the claims.

Referring to the drawings:

Figure 1 is a front elevation of a machine embodying my invention. I

Fig. 2 is a right hand side elevation of the same.

Fig. 3 is a left hand side elevation of the same.

Fig. 4 is a plan section taken on the line 44 of Fig. 2.

Fig. 5 is a detail vertical section taken on the line 55 of Fig. 1, with the parts therein shown somewhat enlarged.

Fig. 6 is a detail vertical section similar to Fig. 5 of a portion of the mechanism shown in said Fig. 5 in a slightly advanced position.

Fig. 7 is a detail vertical section similar to. Fig. 5 with the parts thereof shown in the position occupied thereby when a bunch of bristles is being inserted in a brush back.

Fig. 8 is a detail vertical section taken on the line 5-5 of Fig. 1, illustrating the action of the bristle deflecting device.

Fig. 9 is a front elevation of the lower end of the bristle holder, illustrating the eye thereof which is adapted to contain a bunch of bristles.

Fig. 10 is a detail section taken on the line 1010 of Fig. 2, illustrating the mechanism for advancing the brush back support dur ing the presentation of the successive holes in each series of holes in said brush back and the mechanism for returning the brush back support to its initial position.

Fig. 11 is a detail vertical section taken on the line. 1111 of Fig. 3, showing the mechanism for removing bunches of bristles from the hopper and the rolls forfeeding said bunches of bristles to the bristle holding and inserting instrumentalities.

Fig. 12 is a side elevation of the operating mechanism for the rolls for feeding said bristles.

Fig. 13 is a detail section taken on the line 13-13 of Fig. 11.

Fig. 14 is a transverse section taken on the line 14--14 of Fig. 1.

Like numerals refer to like parts throughout the several views of the drawings.

Inthe drawings, 15 is the main frame of the machine which supports practically all of the moving parts or mechanisms of the machine, and 16 is a driving shaft journaled to rotate in suitable bearings 17 and 18 on said frame 15. At the front of the frame 15 is a table 19 preferably slidably mounted on vertical guides 20, 20, said table being preferably adjusted by means of a set screw 21 having screw threaded engagement with the lower part of the frame 15.

Superimposed on said table 19 is a slide 22 having engagement with a dovetail guide member 23 arranged transversely of the machine. Still another slide 24 is mounted upon the slide 22 to move forwardly and rearwardly with respect to said machine upon a suitable dovetail guide member 25 carried by the slide 22. The slide 24 preferably constitutes a brush back or holder support. The form of brush back within which the present machine is particularly adapted to insert bristles is shown at 26 in brush back 26.

As but one of said perforations can aline with the bristle inserting instrumentalities at one time it is necessary to provide means for moving the support or slide 24 both longitudinally and transversely wlth respect to said brush back so as to move the perforations successively into alinement with said inserting means. v The brush back 26 is secured to the slide 24 by means of a clamping device preferably consisting of a plate 30 se cured by screws 31, 31 to said slide, sald plate being arranged to engage one side of said brush back.

p A stop 32 is arranged to position said brush back longitudinally von said slide and a movable plate 33 is arranged to engage the opposite side of the brushback from the plate 30, said plate being slidably arranged betweenguides34, 34 and preferably held against said brush back by an eccentrically mounted lever 35 which is adapted to posltively clamp said plate against said brush back and thereby force said brush back against the fixed plate 30.

Means have been provided for automatically imparting a'step by step advance movement to the slide bearing said brush back, longitudinally with respect to said brush back, that is to say, lengthwise of the series 28 of perforations. This mechanism preferably embodies in its construction a toothed plate 36 attached to an arm 37 constituting a part of the slide 22. The teeth 38 of sald plate are adapted to be engaged by a pawl 39 pivoted at 40 to the upper end of a lever 41, said lever being pivoted at 42 to a portion of the table 19.

The lever 41 is connected by a link 43 to an adjustable crank pin 44 mounted upon a-rotary disk 45. The disk 45 is attached to a rotary shaft 46 journaled to rotate in bearings 47, 47 on said frame 15. The shaft 46 is rotated from the driving shaft 16 by means of bevel gears 48 and 49 attached to said driving shaft 16 and-said shaft 46 respectively. A spring 50 is adapted to normally retain the pawl 39 in yielding engagement with the teeth 38 of said plate 36, so

when said slide arrives at sai that as said pawl 39 is reciprocated by means of the crank 45 and its connecting instrumentalities hereinbefore described said pawl will be moved to successively engage the teeth 38 and thus advance .said slide 22 step by step along the guide member 23.

, projecting into the path of the slide 22 and ath so that end it will engage said pin 54 and rock the shaft 52 in its bearings Attached to the shaft 52 is an arm 55 adapted to be moved, upon the rocking of said shaft by the slide 22, into the path of a clutch dog 56 rotatin during the operation of the machine wit the clutch 57 fast to the shaft 16. When said dog engages the arm 55 the clutch member 58 hearing said near the extreme end of said dog and attached to said shaft 16 is disconnected from the fly wheel 59 from which said shaft 16 receives its power, whereupon said shaft will be disconnected from said fly wheel and stopped; .The clutch employed for this purpose may be constructed in accordance with any of the numerous forms of clutches embodying a clutch dog movable as 4 described, and as these are well known to those skilled in the art and form no part of the present invention, a'detail description thereof is not thought to be necessary.

To start the machine into operation the arm 55 is moved to the right from beneath the dog 56, see Fig. 1, so as to occupy the position as illustrated in Fig. 1, and with said arm in this position the pin 54 will be in a position to be acted upon by the slide 22 when it arrives at the end of its advance movement.

To return the slide and brush back to their initial positions manually operable meanshave preferably been provided, said means embodying a plate 60 attached to the slide 22, preferably by means of screws 61 and 62. The screw .61 extends through a horizontally disposed slot 63 in said plate While the screw 62 extends through an obliquely disposed slot 64 in said plate, said screws constituting supports for said plate, permitting the same to be moved/longitudinally thereon to the extent of the slots 63 and 64, see Fig. 10.

A spring is adapted to normally retain the plate 60 in the position shown in Fig. 10, that is with the screw 62- at the lower extremity of the slot 64 and the screw 61 at the end of the slot 63 nearest to said slot 64. The plate 60 also has a finger 66 extending over an extension 67 formed upon the pawl 39. When pressure is applied to the plate 60 in the direction of the arrow a, Fig. 10, the end of said plate bearing the fin er 66 will be depressed, owing to the obliquely disposed slot 64 and the screw 62.

The result of such a depression is to cause the extension 67, which 1s engaged at this time by the finger 66, to be depressed whereupon the, pawl 39 arranged upon the opposite side of the pivot 40 from said extension 67 will be elevated or in other words disengaged from the teeth 38 so as to permit the slide 22 to be moved into the position shown in Fig. 10, this being the startingposition of said slide.

After the bristles have been set in the first of the series of perforations in the brush back and the brush support or slide 24 has been returned to its initial or starting position which is the position which said brush support occupies in Fig. 4, and at which time the pawl 39 is in the position shown in Fig. 10, it will be necessary to move said brush back support 24 in a direction transversely of the brush back 26 so as to bring the second of the series of perforations into alinement with the bristle inserting instrumentalities. I

The means for accomplishing this result are preferably manually operable means and embody in their construction a lever 68 secured by a screw 69 to a lug 70 pro e ct1ng from the slide 22. The screw 69 constitutes a pivot for said lever 68. The lever 68 is rovided with a series of steps 71, 72, 73 and 74, the number varying to correspond with the number of rows of bristles that are to be inserted in the brush back, each of said steps being arranged at'a slightly greater distance from the axis of the lever 68 than the preceding one, the distance between the successive steps being equal to the space between each two rows of perforations in the brush back.

The steps referred to engage a projection 75 upon the slide 24 which may be secured thereto as a separate piece or formed integral with said slide. In the present instance, however, said projection is formed as a separate piece, as will be seen by referring to Fig. 5. The rocking of the lever 68 upon its axis or stud 69 in the direction of the arrow 12, Fig. 4, causes the several series 28 of per forations 29 to be successively presented to the position alining with the bristle inserting instrumentalities.

To properly position said lever 68 so as to aline the several cam surfaces with the projection 70 I have preferably provided a spring or locking pin 76 upon the under side of said lever, the outer end 77 of said pin being arranged to yieldingly engage the inner surface 76 of a segment 79, said segment having notches 80, 81, 82 and 83 which correspond to the steps 71, 72, 73 and 74 respectively.

The segment 79 is preferably secured to the In 70. A spring 84 yieldingly retains the end 77 of said pin 76 in contact with the segment 79. A lever 85 is pivoted at 86 to the arm 37. The free end of said lever engages the rear side of the slide 24 at 87. A spring 88 is interposed between the free end of the lever 85 and a book 89 attached to the slide 22 for the purpose ofyieldingly retaining the slide 24 in contact with the cam surfaces 71, 72,73 and 74.

Arranged above the brush back support is a hopper 91 adapted to' contain a mass of bristles indicated at 92. The hopper 91 is preferably vertically disposed and secured to the frame 15, said hopper having guide members 93, 93 arranged upon opposite sides thereof adapted to guide a weight 94 which rests upon the mass of bristles 92 and forces said mass of bristles downwardly in said hopper.

A spring 95 with one end thereof attached to the u per end of the weight 94 and the other end to a screw 96 in the front of said hopper 91, exerts a yielding pressure upon said weight 94 against said mass of bristles. The hopper 91 has at. the bottom thereof a pair of curved metal strips 97, 97 secured by screws 98 thereto. These strips are arranged at opposite sides of said hopper and support opposite ends of the mass 92 leaving the middle portions of said bristles exposed at 99. The space between the strips 97 constitptes as it were a vertically disposed central s 01;.

Means have been provided for removing a bunch of bristles from said hopper, and this means preferably embodies in its construction a bristle carrier or slide 100 arranged to reciprocate in suitable ways 101 formed in a bracket 102 attached by screws 103 to the hopper 91. The slide 100 has a vertically disposed groove 104 extending longitudinally thereof from the upper edgeof said slide to a point a slight distance above the lower edge of said slide. The upper edge or, rightly speaking, the upper edges of said slide-100 are recessed at 105 at the central portion thereof to form hooks 106. The recessed edge of said slide is arranged to reciprocate transversely of the hopper 91 in the slot at the lower end thereof and during the movements of said slide in one direction, the hooks 106 will engage the middle or exposed portions of the bristles resting upon the strips 97. The upper edge of the slide 100 is slightly above the lowermost portions of said strips, consequently said slide supports the middle portions of the bristles in said hopper while the pressure of the weight 94 upon said bristless causes said bristles to drop into the recessed portion 105 of said slide, thus insuring a number of said bristles bemg caught by said hooks when'said'hooks are moved against the same.

A plate 107 is arranged in the groove 104 of said slide 100, saidplate having formed at one end thereof a hook 108 which inclins toward the points of the hooks 106 and cooperates with said hooks to form a pocket 109 to receive a certain number of bristles and to grip and hold said bristles durin the forward movement of the slide 100. he plate 107 is provided with obliquely disposed slots 110, 110, and through said slots are arranged pins 111 which alsoextend through the slide 100 up6n. opposite sides of the plate 107. I

The pins 111 retain the plate 107 w1th1n the'slot 104 but permit a limited movement of said plate relatively to said slide. This limited movement permits the hook 108 to move from the position shown in full hnes in Fig. 11 rearwardly and downwardly to;

the position shown in'dotted lines in said figure. The downward movement of said hook 108 takes place during the movements of the hooks 106 toward the hopper 91 and consequently removes the hook 108 from the path of the bristles which are to be engaged by said hooks 106 but when said slide 100 is moved in the opposite direction, that is, to-

ward the vright in Fig. 11 the hook 108 is forced upwardly and cuts out from the bottom of the mass of bristles those engaged by ing the first part of the movements of the the hooks, 106, said bristles being indicated at d, and grips said bristles,'thu's causing them to be removed from the hopper.

The slide 100 receives its movement from the plate 107 through the pins 111, thus permitting said slide 100 to remain at rest durplate'107 in both directions due to the length of the slots 110. To insure the slide 100 remaining at rest at thesetimes, a screw 112 is,

arranged to engage the bottom of the slide 100, and to provide a predetermined amount of friction for said slide. The plate 107 is pivotally connected at its rear end with a link 113 which, in turn, is connected with the free end of a lever 114 fast to a shaft 115 journaled to rock in a bearing 116 fast to the frame 15 of the machine.

Another lever 117 is also secured to the shaft 115; said lever 117 is connected by means of alink 118 extending to the opposite side of the machine to a lever 119 fast to a rocker shaft 120 journaled to rock in bearings 121 extending outwardly from the main frame 15. A rocking movement is imparted to the shaft 120 by a lever 122 secured to said shaft and connected by a connecting rod 123 and eccentric strap 124 with means of mechanism including Y an plccentric 125 which is secured to the shaft riven as hereinbefore described, said eccentric and connecting instrumentalities described being arranged to impart a reciprocatory motion to the plate 107 and slide 100, whereb a bunch of bristles may be engaged and emoved from the hopper and carried t6 the position illustrated in Fig. 11. Alining with this position is a pair of rolls 126 and 127 arranged with their axes substantially parallel with the direction of movement of the slide 100, said rolls being placed in close proximity to said slide and with their axes at substantially equal distances from a horizontal plane passing through the center of the bunch of bristles gripped by the bristle carrier hooks 108 and 106.

The rolls 126 and 127 are secured to shafts 137 and 138 respectively which shafts bristle carrier slide may be inserted between said rolls when said slide is moved in the direction of said rolls.

To facilitate the insertion of said bunch of bristles said rolls are'provided with cooperating flattened faces 130 and 131 respectively. he peri heries of the rolls 126 and 127 are arrange to substantially contact one with the other, but when said rolls are at rest with the flattened faces 130 and 131 opposite to each other a gap 132 is formed between said rolls of a size suflicient to receive the bunch of bristles on the bristle carrier slide.

-A rotary motion is imparted to the rolls 126 and 127 simultaneously preferably by spur gears 133 and 134 secured to the shafts 137 and 138 respectively and between the two bearing members 128 of the bracket 129. A pinion 135 is attached to the'shaft 137 and meshes with the teeth of a spur gear 136 rotatably mounted upon a stud 139 secured to the bracket 129.

A ratchet 140 is connected with the spur gear 136 to rotate therewith, said ratchet having teeth 141 arranged to be engaged by a pawl 142 mounted upon an arm 143, said arm eing also arranged to rock upon the stud 139. A spring 144 yieldingly retains the pawl 142 in engagement with the teeth of the ratchet. The rocking movement is imparted to the pawl and arm 143 by means of a link tion of the main frame 15. The other arm,

148 has a cam follower 149 arranged to engage a cam 150 secured to the driving shaft 16, said cam having surfaces adapted to impart the desired movement to the rolls 126 and 127 at the proper time in the operation be moved'upwardly until the eye 154 alines with the contacting points of the rolls 126 and 127 and while said bristle holder slide 7 is in said uppermost position the said rolls are operated to insert the bunch of bristles therebetween endwise into said eye, the end of said eye adjacent to said rolls being tapered outward-1y at 155 to facilitate the insertion of said bristles therein.

Two distinct movements are imparted to the bunch of bristles being fed to the bristle holder slide by the rolls 126 and 127. These movements are accomplished by means of the cam 150 and a spring 156 connected to the upper end of the arm 143 and to a screw 157 attached to the frame of the machine, said cam being arranged to move the connecting mechanism in one direction while the spring operates said mechanism in opposition to said cam.

The first movement of said rolls occurs when the cam follower 149 drops from the highest point 158 on said cam to the intermediate level 159 during the rotation of said cam in the direction of the arrow 0, see Fig. 2, at which time the spring 156 causes the rolls 126 and 127 to advance the bunch of bristles therebetween through the eye 154 of the bristle holder slide.

During this feeding of said bristles the bristle holder slide 151 is preferably at rest This movement is not sufficient to entirely free the bristles from between the rolls 126 and 127 but permits said bristles to remain between said rolls and be held thereby a slightly longer period, or, in other words, during a portion of the downward movement of said bristle holder slide. The bristle holder slide 151 is reciprocated preferably by means of a lever 160 having one end thereof arranged within a slot 161 in the upper end of the bristle holder slide 151 and secured thereto by means of a pin 162.

The lever 160 is pivoted at 163 to a portion of the main frame 15. The opposite end of the lever 160 is connected by, means of a rod 164 to an eccentric'strap 165 encircling an eccentric 166 attached to the driving shaft 16. As the bristle holder slide 151 is being moved downwardly toward the brush back 26 an added movement is imparted to the bunch of bristles d by means of the rolls 126 and 127, to continue the feeding of said bristles through the eye 154 so as to arrange said bunch of bristles symmetrically in said bristle-holder slide and at the same time hold said bristles while said bristle holder slide is being advanced to the brush back. This added movement is imparted to said bristles d by the spring 156 through the cooperation of the drop 167 in the cam 150.

Upon the completion of the insertion of the bristles d into the eye 154 means are provided for the purpose of engaging said bunch of bristles substantially midway of.

its length to double and insert said bristles in the brush back 26 or in the perforation of said brush back alining with said bristle holder slide. This means embodies in its construction a dIlIVBl 168 arranged to reciprocate in a groove 169 formed in the front face of the bristle holder slide 151, said groove extending downwardly entirely through the block 153, a portion 170 of said groove which is below the eye 151 being wider than the portion above said eye so as to permit said bristles to be doubled.

The driver 168 is preferably operated by a lever 171 pivoted at 172 to a portion of' the frame 15, said lever being connected at one end by a link 173 to said dIlWeI' and at its opposite end by a rod 174 to an eccentric strap 175 encircling an eccentric 176 fast to the shaft 16. The driver 168 does not engage the bristles (1 within the eye 154 but.

said driver is adapted to engage a plug or what may be called a wedge, 177 constructed of any suitable material preferably the same material from which the 'brush back 26 is constructed, said plug being of substantially the same size as the groove 169 or corresponding in cross section to the cross section of the driver 168.

One of these plugs is inserted in the groove 169 between the lower end 178 of the driver and the bunch of bristles 03 when said driver is in its uppermost position and upon the downward movement of said driver said plug will be engaged and forced downwardly against the bunch of bristles, causing said bristles to be doubled into the enlarged portion 170 of said groove and upon the continued downward movement of said driver said plug, together with said bunch of bristles, will be inserted within the perforation 29 directly beneath the bristle holder slide.

The plug 177 serves to retain said bunch of bristles within said brush back and may,

if desired, be-secured therein by suitable ceprovided in the block 153 of a size just large enough to receive said plugs. v

A plug contalner 180 1s preferably detachablysecured to the rear face of the slide 151 by means of a stud 181-and a wedgemoves downwardly in the A dowel pin 183 assists in 184, through which the mass of plugs are fed to the opening 179, in the block 153. A rod 185 is inserted in the passage 184 in contact with the last plug in the mass of plugs and said rod is yieldingly forced lengthwise of said passage preferably by means of spr1ngs 186 and 187 arranged upon the 'o os1te sides of said rod and connected to the outer end of said rod by hooks 188, 188. The inner ends of said springs are connected by hooks 189 to the container 180. When the driver 168 groove 169 the first plug from the mass will be -removed and forced downwardly by said" driver, the next plug in said mass being prevented from moving y the driver but on the retraction of said driver the springs 186 and 187 cause the rod 185 to advance the mass of plugs a distance equal to the thickness of said driver, thus placing another plug in the path of said driver in readiness to be carried down therewith upon the next movement of said driver.

When the container 180 has been emptied of its contents it may be removed by withdrawing the wedge 182 and the container refilled. A stop pin 190 on the rod 185 is adapted to engage the outer end of the container 180 to prevent the inner end of the rod from entering the groove 169 so as to be engaged by the driver 168. After the bunch of bristles from the eye 154 has been inserted in the brush back 26 the bristle holder slide 151 is retracted, that is to say, moved upwardly to receive another bunch of bristles which have been taken from the shaped pin 182'. locating a passage "mass of bristles 92 within the hopper 91 by the bristle carrier 100, laced between the rolls 126 and 127 and fe by said rolls in the manner hereinbefore described into the eye 154 of said bristle holder slide whereupon the driver 168 will again be moved downwardly carrying before it the first plug 177 from the mass of plugs and insert it with said bunch of bristles in the next hole in the brush back.

During the movement of the slide 100 from the hopper 91 to the rolls 126 and 127 which movement takes place while the bristle holder slide 151 is being moved upwardly a feed finger 191 is caused to be rocked about its pivot 192 by a pin 193 se- I finger so as to cause said finger to advance with said bristle carrier towardthe rolls 126.

and 127. The feed finger 191 visarranged upon the opposite side; of said rolls'from the bristle carrier 100 and is for the purpose of assisting'said slide ininserting the bristles carried thereby between said feed rolls.

A spring 195 retracts said feed finger when the pm 193 is moved downwardly wlth the bristle holderslide 151. After all of the perforations in the first series 29 of said brush back have been filled with bristles said brush back is moved transversely by the'manually operable means hereinbefore described to present a second series of holes to the inserting instrumentalities, all as hereinbefore describedif 4 The several series of perforations 28 must be placed very close together especially when the brush is a tooth brush or the like is shown. Consequently, the first'series of bristles that is inserted in said back will interfere more or less with the subsequent insertion of bristles.

Means have, therefore, been provided for deflecting the bristles previously inserted in said back, that would-interfere with those to be inserted, from the path of the insert in 196 preferably disposed slightly above the face of the brush backand substantially parallel thereto.

Said arm is furthermore attached to the lower end of a lever 197 said lever being pivoted to a stud 198 secured to a stationary portion of the frame 15. Guides 199 are mounted upon said frame substantially below the stud 198 to guide said lever during the oscillatory movements thereof.

Secured to the bristl' holder slide 151 is instrumentalities. This means preferab y embodies 1n 1ts construction anarm.

a bracket 200 bearing a pm 201 arranged .to 1-10 be thus removed from the path of said T bristle inserting means. Upon the upward 'movement of the bristle holder slide 151 said arm willbe returned'to its normal posltion by the pin 201 cooperating with the groove 202. s

In he above description of) the operation of the machine embodying the invention, the term brush back has been used in connection with the holder for the bristles. It is to be understood, however, that by the term brush back is meant all forms of holders or brush stocks within which it may be possible to insert bristles in the manner hereinbefore described and it should not be limited to the specific form of brush disclosed in the drawings.

Having thus specifically described my 1nvention what I claim and desire by Letters Patent to secure is:

1. A brush making machine having, in combination, means for holding a bunch of bristles, means for inserting a bunch of bristles longitudinally of said bristles mto said holding means, and means adapted to feed a plug against said bunch of bristles and to insert said bunch of bristles in a brush back.

2. A brush making machine having, in combination, means for holding a bunch of bristles, a pair of rolls adapted to feed a bunch of bristles to said bristle holding means, and means for inserting said bunch of bristles in a brush back.

3. A brush making machine having, in combination, means for holding a bunch of bristles, a pair of rolls having cooperating flattened faces, means constructed and arranged to insert a bunch of bristles between rolls to feed said bunch of bristles to said bristle holding means and means for doubling and inserting said bunch of bristles in a brush back.

4. A brush making machine having, in combination, a bristle holder provided with an eye adapted to hold a bunch of brlstles, means for feeding a bunch of bristles longitudinally of said bristles into said eye, and a driver adapted to be moved toward said bunch of bristles to double and insert the same in a brush back. 1

5. A brush making machine having, in combination, a bristle holder provided with an eye, means for feeding a bunch of bristles longitudinally of said bristles into said eye, a driver constructed and arran ed to reciprocate relatively to said hol er, means for feeding plugs to said holder, and means adapted to operate said driver to engage and move a plug against said bunch of bristles to insert said bunch of bristles in a brush back. (5. A brush making machine having, in combination, a slide provided with an eye adapted to hold a' bunch of bristles, means for inserting a bunch of bristles longitudinally of said bristles into said eye, a driver constructed and arranged to reciprocate in said slide toward and from said eye, means for feeding a plug to said slide between the end of said drlver and said bunch of bristles, and means for operating said driver to move said plug against said bunch of bristles to double and insert said bunch of bristles in a brush back.

7. A brush making machine, having, in combination, a holder provided with an eye said bunch of bristles in said holder, and

means for doubling and inserting said bristles in a brush back.

9. A brush making machine having, in combination, a slide provided with an eye adapted to hold a bunch of bristles, means for inserting a bunch of bristles longitudinally of said bristles into said eye, a driver constructed and arran ed to reciprocate in said slide toward and from said eye, a plug container, means for feeding a plu to said slide in front of said driver, an means said flattened faces, means for rotating said sfor operating said driver to move said plug against said bunch of bristles todouble and insert said bristles in a brush back.

10. A brush making machine having, in combination, a slide provided with an eye adapted to hold a bunch of bristles, means for inserting a bunch of bristles endwise into said eye, a driver constructed and arranged to reciprocate in said slide toward and from said eye, a plug container movable with said slide, means for feeding plugs to said slidein front of said driver, and means for operating said driver to move the plug in front thereof against said bunch of bristles to double and insert said bristles in a brush back.

11. A brush making machine having, in combination, a slide, means for securing a brush back to said slide, means for automatically imparting a step by step advance movement to said slide longitudnally of said brush back, means for inserting a bunch of bristles in said brush back at each step in the advance of said brush back, and manually operable means adapted to impart a step by step movement to said slide transversely of said brush back, said means including a lever provided with a series of steps concentric with the axis of said lever, adapted to engage said slide, a segment, and means for locking said lever to said segment.

12. A brush making machine having, in combination, a slide, means for securing a brush back to said slide, said brush back having a plurality of series of perforations formed therein adapted to receive bunches of bristles, a bristle holder movable toward and away from said brush back, means for removing the bunches of bristles from said holder and inserting the same in the perforations in said brush back, means for imparting a step by step advance movement to said brush back to aline said perforations with said holder, a pivoted arm having a cam slot, and means on said bristle holder I adapted to engage said arm within said slot and rock said arm upon its pivot to engage and deflect previously inserted bristles from the path of said bristle holder.

13. A brush making machine having, in combination, a brush back support, a bristle holder, a' pair of rolls adapted to feed a bunch of bristles endwise to said holder, means for feeding a plug to said holder adjacent to the middle of said bunch of bristles, and means constructed and arranged to move said plug against said bristles and to insert said bristles in the brush back on said support.

14. A brush making machine having, in combination, a reciprocating bristle holder, a pair of rolls constructed and arranged to feed a bunch of bristles to said bristle holder, and means for operating said rolls to feed said bristles to said holder when said holder is stationary, said means being also adapted to feed and hold said bristles during the advancing movement of said holder.

15. A brush making machine having, in combination, a hopper adapted to contain bristles, said hopper. having a vertically disposed central opening at the bottom thereof, a bristle carrier constructed and arranged to reciprocate transversely of said hopper through said opening, a hook at the upper edge of said carrier open toward the rear of said carrier, a second hook normally disposedbelow said first named hook and movable upwardly and obliquely on said carrier to cooperate with said first mentioned hook to grip a bunch of bristles, and means for operating said second named hook and to impart through said second named hook a reciprocating movement to said bristle carrier.

16. A brush making machine having, in

combination, a hopper adapted to contain bristles, a slide adapted to engage a bunch of bristles in said hopper, a plate arranged to move obliquely relatively to said slide, means for limiting the movement of said plate on said slide, a hook on said plate normally disposed below a hook on said slide.

constructed and arranged to cooperate with the hook on said slide to grip the bunch of bristles engaged thereby, and means for operating said plate and slide in one direction to grip and advance said bunch of bristles, said means being adapted to operate said plate and said slide in the opposite direction to release said bunch of bristles and retract said slide.

17 A brush making machine having, in combination, a hopper adapted to contain bristles, means at the bottom of said ho per adapted to support opposite ends of the ristles in said hopper, a slide arranged beneath sald hopper adapted to reciprocate between said su ports, a hook at the upper edge of said sllde adaptedlto engage a bunch of bristles during the movement of said slide 1n one direction, said slide having a groove extendlng longitudinally thereof, a plate arranged 1n said groove, said plate having a plurality of obliquely disposed slots, means disposed laterally of said slide through said slots, adapted to limit the movement of said plate relatively to said slide, a hook on said plate normally disposed below the hook on said slide adapted to be moved upwardly and obliquely to cooperate with the hook on said slide to grip and hold the bunch of bristles engaged by said hook, and means for reciprocating said plate, whereby said slide will also be reciprocated.

18. A brush making machine having, in

combination, a hopper adapted to contain bristles, means at the bottom of said hopper adapted to support opposite ends of the bristles in said hopper, a slide arranged beneath said hopper adapted to reciprocate between sa1d supports, a hook at the upper edge of said slide adapted to engage a bunch of bristles during the movement of said slide in one direction, said slide having a groove extending longitudinally thereof, a plate arranged in said groove, said plate having a plurality of obliquely disposed slots, pins extending through said slide and said slots adapted to limit the movements of said plate relatively to said slide, means on said plate adapted to cooperate with the hook on said slide to grip and hold the bunch of bristles engaged by said hook, means for reciprocating said plate, whereby said slide will also be reciprocated, and frictional means adapted to hold said slide stationary while said .pins are moving from one end to theother of said pair of rolls, the other end'of said rolls being free, one of said rolls havinga portion of the periphery thereof flattened to form a gap between said rolls adapted to permit a bunch of bristles to be inserted therebetween from the unsupported end of said rolls, means for inserting a bunch of bristles in said gap, and means for rotating said rolls to feed said bristles into the eye of said bristle holder.

20. A brush making machine having, in combination, a bristle holder having an eye adapted to receive a bunch of bristles, one end, of said eye being tapered outwardly, means for removing a bunch of bristles from a mass, means for feeding said bunch of bristles longitudinally into the tapered end of said eye, and means for doubling the bunch of bristles in said holder and insert ing the same in a brush back.

21. A brush making machine having, in combination, a slide adapted to support a brush back, said brush back having a plurality of series of holes for receiving bristles, means for inserting bristles in said holes, means for auton'iatically advancing said slide to successively present each of the holes in said series to said bristle inserting means, manually operable means for returning said slide to its initial position, said manually operable means includin a plate movable longitudinally on said side, and means adapted to depress one end of said plate during said longitudinal movement to engage and disconnect from said slide the means whereby said slide is automatically advanced.

22. A brush making machine having, in combination, a bristle holder slide provided with an eye adapted to hold a bunch of bristles, a pair of rolls constructed and arranged to feed a bunch of bristles lengthwise to said eye, a hopper, a bristle carrier slidearranged at one side of said rolls adapted to remove a bunch of bristles from said hopper and insert the same between said rolls, and means arranged upon the opposite side of said rolls from said bristle carrier slide adapted to cooperate with said carrier slide to insert said bunch of bristles between said rolls.

23. A brush making machine having, in combination, a bristle holder slide provided with an eye adapted to hold a bunch of bristles, a pair of rolls constructed and arranged to feed a bunch of bristle-s lengthwise to said eye, a hopper, a bristle carrier slide arranged at one side of said rolls adapted to remove a bunch of bristles fl'Oll'l said hopper and insert the same between said rolls, and means operated by said holder slide arranged upon the opposite sides of said rolls from said bristle carrier slide adapted to cooperate with said carrier to insert said bunch of bristles between said rolls.

21 A brush making machine having, in combination, a bristle holder, means for feeding bristles endwise into said holder, means for moving said bristle holder toward a brush back, means for feeding a plug to a point above the bristles contained in said holder, and a driver constructed and arranged to be moved relatively to said holder against said plug to insert said bristles in said brush back.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

DANIEL L. CHANDLER.

Witnesses:

CHARLES S. GOODING, SYDNEY El TAFT. 

